Governor and governor stop



Nov. s, 1927. 15484 09 l. F. BURTON GOVERNOR AND GOVERNOR STOP Filed May 21, 1924 3 shans-sheet mz w Nov. 8, 1927. 1,648,109

. F. BURTON GOVERNOR AND GOVERNOR STOP Filed May 21, 924 3 Sheets-Sheet 2 Nov. 8, 1927.

1,648,109 F. BURTON GOVERNOR `AND GOVERNOR STOP Filed May 21, 1924 3 Sheets-Sheet 5 UNITED t arr OFFICE,

ISAAC IE'. BUETON. DECEASD, LATE OF HILADELPHA, PENNSYLVANIA,`BY MANIE E.

BURTON, EXECUTRIX, OF

ATONE COMPANY OF AMERICA er :asi

TION OF DELAWARE.

ITA, PEFEJNSYLVANIA, ASSIGNOR TO VISUAL- LADELPHA, PENNSYLVANIA, A CORPORA- GUVERNOB AND GOVEBNOR STOP.

Application filed. May 21, 1924. Serial No. 7143799.

The main purpose of my invention is to provide mechanismtor automatic and hand control of the operation ot the turntahle at once well adapted to the needs ot service and t easy and ineXpensive to manufacture.

A further purpose is to have setting and trip lever mechanism tor starting and stopping the turntable brake upon the governor disc instead of upon the turntable as has hitherto been customary, thereby obtaining easier braking and relief from starting and stopping strains in the mechanism between the governor and turntable.

A `further purpose is to provide the speed regulator lever with an a'di'ustable scale pivoted upon the pivot of the regulator lever.

A further purpose isto support both ende of the springs of a spring and ball type of speed eovernor from turning with respect to the governor shaft, thue dividing and reduc ing torsional stresses upon the springs.

A further purpose is to provide direct as distinguished from derived' balance of a horizontal spring and ball speed governor by placing the spring and ball nnits directly opposite each other.

A further purpose is to further reduce torsional stresses upon the springs by fiattening the balls and fastening to the springs at a flattened portion, bringing the center ot' mass of the balls nearer to the fastening ot the springs.

Further purposes will appear in the specification and in the claims.

I have preferred to illustrate hut one of the various forms of my invention, selecting a form which has proved to be pract-ical, eiiicient and reliable and which at the same time well illustrates the principles involved.

Figure 1 is a horizontal section above the turntable of a talking machine eqnipped with my invention. i

Figure 2 is an enlarged fraementary top plan View of the structure of Fieure 1 with the turntable and tonearm removed to disclose Operating details.

Figure 3 is a detail secticn taken 'upon the line ai? Figura %21 Figure i is a fragmentary top plan view showing a portion of Figure 2. i

F igure 5 is a side elevation of Figure 4.

Figure 6 is a detail section ot the governor taken 'upon thelneG- of Figure 4.

Lil-:e numerals refer to like parte in all figures.

Describing in illustration and not in limitation and referring to the drawngs:- i

"Prior tomy invention talking machines have been operated with starting and set automatic stop mechanism and automatic speed governing that has worked tairly well but which has had disaclvantages which it is my aim to correct.

The speed governor has been of the centrifugal horizontal spring and ball type haV- ing three spring-and-ball units spaced at 120 the springs being tastened at one end to a fixed collar on the driving shaft and at the other to a: loose collar carrying the :triction disc 'for speed regulation and the, breaking for setautomatic stopping has been agaist the turntable itself;

I have discovered that disadvantageous stresses in the springs of the spring-and-bll units with accompanying imperfect balancing of these units may be consi'derably reduced by locking the. loose collar from any turning With respect to the shaft upon which it is mounted and along which it is adapted to slide thus supporting both ends of the springs against rotary movementwith respect to the shait; that these stresses and imperfect balancing may be further reduced by directly balancing one'spring-andhall unit against another directly across the center, getting additional advantage from the increased number and still :further reducing the imperfect balancing by fiattening the balls to move their centers ofmass nearer to the springs.

I have further discovered that disadvantageous stresses in the Operating mechanism between the governor shaft and turntable may' be reduced and braking to stopthe turntahle made more easy by brakingagainst the friction disa of the governor instead of directly against the turntable. y

in the figures' themechanism to which in' nventon is apple'd is shown te a sensi a #renie sistem; c t nventianallyi I show conventionally sound box having a needle 11, turntable 12, a tone-arin 13, horn 14 and doors 15 of the cabinet 16.

The turntable spaced above the top plate 17 is mounted upon a vertical shaft 18 that 'passing through the top plate carries a to bring their Centers of mass closer to the' I springs and to-rednce'to aminimumfanning of the air fronthe rapid revolution of the e balls. The curvature ot the outer surfaces of the balls is such as to conform approxim'atelywith the curvesgenerated by their revolution at usual speeds.

The balls may be tastened to the springs' ,26 n any suitable manner, as by screws 27.

The springs are fastened at one end each by-screws 28 to the collar 29 rigidly secured tothe driving shat't 21, and at the other end are fastened by screws 28' to the sliding collar 30, nounted to slide on the shaft responsive ;to centrifugal action of the balls but locked from turning with respect to the shaft, in order to supportthe springs against torsion at both-ende.

This looking of the slidingcollar 30 is Conveniently efiected by engagement of-intersliding portions 31 and 32 of the respecy tive collars, which portions, for bet-ter balance are preferably complementary and seni-cylindrical, as best seen in Figures 4 an-d`6. 4

The friction disc 33 is rigiclly mounted upon. the sliding collar 30, and is located somewhat below the metal top-:plate 17 and motor board 34 asbest seenvin Figure 5.

Thebrake-element 35 tor speed control is mounted at the end. of a downwardly projecting arm 36 of the bell-cran'k member 37 pivoted at 38 upon the upper -side ot' the topflplatethe` top-plate and motor board being suitably'cut away at 39and40 to pass the ar n 36. r

The bell-crank member 37. eomprises the speed regulating lever. Its outer end, is conveniently bent'upward at 42 toorna handle and near the handle is perforatedand shaped to an indicating ,point 43. An adjustable graduated plate 44 beneath 'the perfor tion f at 43 .provides visual indication of the speed. 'Thegraduated pla te 44 is preferably providedjwithan inwa'r'dly extending arin 45 pivoted on the bellerank pivot 38. Its outer end is bent up to a 'handle 46 similar to the handle 42 of the bellcrank member.

I The pivotfscrew 38 i is of 'standard type shoulder-ed at thethreaded portion 47 'which screws into the top-plate. A 'forked spring i V 1,64s,1o9

washer 48 is compressed between the bellera-nl( and scale member and is held to place by means ot a screw 49 passing through the rearwardly projecting arm 50 of the washer and into the top plate. It provides friction at the pivot'38 sufiicient to maintain these members in place wherever set, yet not enough to prevent setting. The frietion upon the bell cranl: member is much less than that upon the scale member, avoiding danger of any setting of the bell crank member efi'ecting displacement of the scale.

lVith. the speed regulator and regulator scale arms in the position shown in the figures, the handle 46 of thescale arm is moved (both arms moving together) until normal speed is obtained at the record disc, as 78 to 80 revolutions per minute; after which the scale arm is not again `disturbed, the speed ,regulator arm handle 42 being movedtoward S or F when it is desired to 'have the record run abnormally slow or abnormally fast respcctively, such adjustment of the speed regulator arm not altecting 'the 'position ot the scale.

The mechanism shown for setting the machineto automatically stop the disc when a record has been played through is much of it eonventional and old, the rincipal advantageous new feature here being tha t of braking aganstthe governor disc 33, which revolves at perhaps 1200 revolutons per ninute, instead of against the record disc, revolvng at 7 78 to 80 revolutions per minute.

The breke lever 51, operative automatcally or. by hand, isgenerally similar to the speed regulator lever in that it comprises a bell ,crank member pivoted above the top plate and having adownwardly projecting arm 37 carrying at its lower end a breke element 36' to engage the triction dise 33.0f the governor.

The brake lever is 'loosely pivoted `upon the screw pivot 52 which screws into the tops plate, thespacingwasher maintaining the lever soinewhat above the'top plate. The

lever is resiliently 'pulled toward braking and stopping of the disc 33 and the driving shaft 21 by the tension spring 54 between lugs 55 and56 respectively onthe brake lever I and on the trip latch arm 57.

The trlp arns mounted upon a hub member 58 loosely pivoted upon the shouldered screw 5 9 secured within the `lopplate, and s provdedwith an ofl'set toe/60 adaptecl to latch in 'the notch 61 in an arcuatc portion '62, of the breke lever. hen the toe of the trip arin is l'athed in the notch of the brake lexer, the leveris positioned s'o as not to brake upon-the diso 33, but when'the toe is released from itsnotc'h. either automatically or by hand, the bra'kelever is pulled by the spring 54 causing the-lever to brake against the disc'33, stopping the disc.

The V-setting member 63, for automatic shown widely fianged above its hearing boss to ati ord wide contact with the latch member and its upper end is fianged at 66 to hold in 7 place the forked spring washer 65.

, The friction between the V member 63 and' latch member 57 is sufiicient to let-the V member open the latch but not so great as to-` prevent difierent settings of the V memi\ 68 of theV member.` The setting operation" her" with respect to the latch.

Automatic tripping of the latch is efiected by providing a downwardly projecting arm 57 from the tone arm to en'gage the trip end i is usually the following 2- lVhile the turntable is stationary and the toe of the trip arm out of the notch of the brake arm, in the position of Figure 2, the brake 36' engaging the disc 33, the record is set in place on the'turntable and the needle of the tone arm is set in the last groove of the record. The V member is then moved by the handle 69 until the trip end 68 engages the arm 67 from the tone arm; the tone arm is then lifted and the needle is set in the first groove. The brake upon the fricton disc is next released by latching the toe into the notch at the brake lever handle 70, the latching motion of the latch arm giving corresponding slight motion to the V member, bringing the trip end in proper position to be engaged by the arm of the tone arm before the last groove has been reached and to release the latch to stop the turntable at the end of the record. The V and trip-latch members are not in themselves new and other :forms of hand and automatic brake operation could be used.

The motor 22 is of any suitable type, either spring or electric. If the motor be of the electrical type it is desirable to have the motor free from current whenever the turntable is not going. Obviously this may be done by having the electrio circuit through the motor turned on when in latching brake position and oti' at other times. This has been shown diagrammatically in Figure 2, Where spaced Contacts 71 an d 72 in the motor circuit are connected eleotrically by a spring member 7 3 when the brake arm is in latching position and not so connected when the brake arm is in braking position. The spring member is shown mounted upon the brake i arm.

artand it is my wish to claim'all such in so tar as they fal] within the reasonable spirt and scope of my invention.`

Having thus` described my invention, what I claim as new and ters Patent is I r i l. In the Operating mechanism of a talking machine, speed governor having a triction disc, a brake therefor embodyng a pivoted bell-crank lever, and means for auto`- matically applying the 'brake at the end of a record. I i

2. In the Operating mechanism of a talking machine, a speed governor having a triction disc, a brake therefor embodying a pivoted bell-orank lever, means for automatically applying the brake, and means for timing the application of the brake with redesire to secure by Let :spect to timing of a record;

In the Operating mechanism of a talking machine having atraveling tone arm, a

speed governor having a friction disc, a

brake therefor embodying a pivoted bellcrank, means for automatically applying the breke, a setting adjustment therefor, and Operating means 'carried bythe tone arm for the application of the brake.`

4. In the Operating mechanism of a phonograph, a speed governor having a rotary friction disc axially moved by the governor, in combination with speed control and shut down brakes both engaged by the disc and a pivoted bell-crank lever carrying one of said brakes. i

5. In the perating mechanism of a phonograph, a speed governorhaving a rotary triction disc axially moved by the governor, a stationary speed regulator brake adapted to be engaged by the disc and other brake mechanisn adapted to be engaged by the disc for stopping and starting the operating mechanism and a pivoted`bell-crank le ver carrying one of said brakes.

6. In the Operating mechanism of a phonograph, a speed governor having a friction disc, a stationary speed regulator brake theretor, a pivot about which the speed regulator is adjustab1e, and a scale for the regulator adjustable about the same pivot.

7 In the Operating mechanism of a phonograph, a speed governor having a friction dsc, a stationary speed regulator brake theretor, a pivot about which the speed regulator is adjustable, and an adjustable scale for the regulator. i

In the Operating mechanism of a phonograph, a speed governor having a frictiou disc, a fixed pivot, a scale adjustable about the pivot, a speed regulator brake lever mounted upon the pivot above the scale, a spring Washer about the pivot compressed between the lever and scale, and a head on he pivot above the lever holding it toits uty.

9. In the Operating mechanism of a phono -mountedzuponthe pivot above and extendin g along the arm and above* the scale having amopening-to display the sealeand contoured to ;provide -an nwardly drected pointer- "above the seale to indicate the position' of- :the breke ;lever with respect toethe scale,

and means-"for maintaining the leveland scale 111 set postons.

*10. In :theoperatng'meehansm of a phonogiaph, :a :driving shutt, a speed governor Qfithe'spring .andball' type, andmeans for looking thevsliding ends of't he springs -:from

, having the ballsfiattened toward the springs turnng with respect .to the shaft. 1 1. In the Operating mechansm of a .phonograph, a drving shaft, and a. speed /governor thereon of 'the r sprng-and-ball type havngmorethan three spring-and bail units uinformly spacede'ound the shaft, a nen- 'ber movable -on said shaft, 'and interengagmg *looking ;means for -sad member.

12. In the operating-mechanism of a phonograph, a driving sha-ft, and a speed governo' of the spring-and ball type having four springaand bail -units halanced, each nnitby a unit diametfieally .across from it .and nterengagnglooking means holding the nnitroairying means from tunning with .respect ;to the sha-ft. i

connected surrounding: the shaft moved by the govern-or-and completing and sliding on themon-circular section of the shaft.

1 4. 'In the Operating mechanism of avphonograph, a driving shaft, ;and a speed goveno' thereon of' the sprin-g-and-ball type and :the outercontonrs of the balls corresponding genera'lly to the figures generated by their revolution at average speed .and means' carrying said; springs and looked against turning With respect to said shaft but novable in the direetionof the length of 50 ;the la tte'.

MANIE E. BUBTON Ewewtrw of the E stataof Isaac F. Bwton,

deceased. 

